JPH04334582A - Garbage disposal equipment - Google Patents

Abstract

PURPOSE:To provide a garbage disposal equipment suitable mainly for domestic use which has a simple structure and is able to lessen the weight and the volume of the garbage; mainly raw garbage such as cooking refuse and rubbish such as plastics for wrapping perishable foods produced in a kitchen; by a simple operation and to prevent the garbage from becoming rotten. CONSTITUTION:A bellows type garbage container 3 installed in a main body container 1, expanding and contracting means 11, 12 to expand and contract the garbage container 3, an electric heater 6 to heat garbage in the garbage container 3, and a gas discharging pipeline 13 to discharge a gas in the garbage container 3 are provided and garbage in the garbage container 3 is heated by the electric heater 6 to dry raw garbage and make the garbage light and the garbage container 3 is contracted by the expanding and contracting means 11, 12 to lessen the volume of the garbage, and thus a garbage disposal equipment which has a simple structure and is able to lessen the weight and the volume of the garbage and prevent the garbage from becoming rotten is provided.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is a relatively small-sized device that targets kitchen waste generated in the kitchen, such as food waste such as cooking scraps that contain a relatively high water content, and waste such as plastic packaging for perishable foods. The present invention relates to a treatment device that is convenient and sanitary to use and is mainly suitable for home use.

0002

2. Description of the Related Art A typical type of garbage generated from households is kitchen waste generated from around the kitchen. Looking at the breakdown, it is said that about 80% by volume is plastic packaging for fresh foods, and about half by weight is food waste such as cooking scraps and leftover food. Generally, this garbage is disposed of by a collection vehicle that goes to a predetermined date and time at a predetermined location to collect the waste, and then centrally processes it at a processing facility such as an incinerator. Therefore, in general households, it is necessary to store garbage until a predetermined collection date and time, and it is also necessary to transport the garbage to a predetermined location on the collection date and time. In order to eliminate these inconveniences, several devices and methods have been proposed for disposing of waste at or near the place where it is generated.

A typical example thereof is called a disposer. This method uses mechanical force to atomize food waste and flush it into the sewers together with water. Its use is regulated at the local government level. Furthermore, it cannot be applied to the treatment of plastic waste. Other methods include a heating combustion method using a heater or the like, a freezing method to prevent odor, and a microwave heating combustion method.

0004

[Problems to be Solved by the Invention] Although food waste occupies a small volume of the total waste, it weighs a large amount, and this is because its constituent components contain a large amount of water. This high moisture content is the cause of problems such as increased transportation work due to the weight of the garbage and the generation of bad odors due to decomposition. In addition, it is often seen in apartment complexes that moisture leaks from bags containing garbage during transportation, and traces of this leakage cause new secondary odors.

[0005] On the other hand, although plastic waste accounts for a small amount of total waste, it accounts for a large amount of volume.This is because plastic food trays, containers, bottles, etc. are often disposed of as waste; This also causes an increase in storage space. Furthermore, these plastic wastes are often treated as non-combustible waste, that is, garbage that must not be burned, and this is also a cause of an increase in the amount of waste in landfills.

[0006] On the other hand, when looking at conventional waste disposal equipment, disposers can finely grind kitchen waste, but the discharged waste after processing contains a large amount of solids and organic components, and waste generated during storage. It has no effect on corruption.

[0007] The incineration method still has problems such as generation of toxic gas components during incineration and disposal of ash. Furthermore, the frozen type does not reduce the weight of food waste. Also, these are garbage disposal devices and are not effective against plastics.
Practical garbage processing equipment is still at a general-purpose level and is in a state of being almost non-existent, and the early realization of such equipment is an issue.

The present invention solves the above-mentioned problems, and aims to reduce the amount of garbage such as cooking scraps generated in the kitchen and garbage such as plastic packaging for perishable foods with a simple configuration and simple operation. The purpose of the present invention is to provide a garbage disposal device that is mainly suitable for household use and can suppress waste generation, volume reduction, and spoilage.

[0009]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a main body container provided with a door, a bellows-like expandable garbage container provided in the main body container, and a garbage container that is expandable and retractable. A garbage disposal device is constructed by including an expandable means, an electric heater that heats the garbage in the garbage container, and an exhaust path that exhausts the gas in the garbage container.

0010

[Operation] According to the present invention, the food waste or plastic waste contained in the waste container is heated to a predetermined temperature by an electric heater. When food waste is the main component, the waste container is kept at that temperature for a while to evaporate water in the food waste and dry the food waste. As a result, the weight of the food waste decreases in proportion to the amount of evaporated water, making it lighter. When the expansion and contraction means is operated in this state, the bellows-like, expandable garbage container expands and contracts. By expanding and contracting the waste container, the dried food waste is compressed and crushed, and its volume can be reduced.

[0011] Furthermore, the plastic waste is softened or partially melted in the waste container, which is heated by an electric heater to raise its temperature. When the expansion/contraction means is operated in this state, the waste container is contracted, and the plastic waste is easily compressed by this contraction, and the volume can be significantly reduced.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

As shown in the figure, 1 is a main container, and 2 is a door that covers the upper opening of the main container 1 and is opened and closed when garbage is taken in and taken out. Reference numeral 3 denotes a garbage container, which is made of a material such as heat-resistant rubber, heat-resistant plastic, FRP, or metal and is expandable and contractible in a bellows shape. Reference numeral 4 designates the bottom plate of the garbage container 3, on the inner surface of which an electric heater 6 for heating the garbage is integrally arranged, and on the outer surface of the bottom plate is a rack 1 guided by a guide 17.
2 is fixed. 5 is a pedestal that supports the garbage container 3. Reference numeral 10 denotes a partition plate that partitions the interior of the main container 1 into an upper space 8 in which the waste container 3 is accommodated and a lower space 9 in which an extensible means is disposed. A pinion 11 is driven by a motor (not shown), which meshes with the rack 12 and moves the rack 12 up and down by rotation. The pinion 11 and the rack 12 form an expansion and contraction means, and the garbage container 3 is forcibly expanded and contracted by its vertical movement. Reference numeral 13 denotes a deodorizer installed inside the door 2, which introduces gas components exhausted from the exhaust inlet 14 during heating of the garbage or when the garbage container 3 contracts, deodorizes them, and releases them from the body through the exhaust outlet 15. discharge to. The exhaust inlet 14, deodorizer 13, and exhaust outlet 15 form an exhaust path. The deodorizer 13 uses an adsorbent mainly made of activated carbon, but it is also possible to use a catalytic reactor, a combination of ozone and a catalyst, etc.

[0014] In the above configuration, when the door 2 is opened, food waste,
Put plastic waste, etc. into the waste storage space 7 of the waste container 3. In this case, the garbage can be directly placed in the garbage storage space 7.
However, if the waste is placed in a disposable bag and then placed in the waste container 3, it has the advantage of being easier to take out after processing is completed. Next, the electric heater 6, which is a heating means, is energized to heat the waste. In this heating process, it is advantageous to set a higher temperature because it will shorten the processing time, but if the input waste contains chlorinated plastics such as vinyl chloride and vinylidene chloride, they will decompose when heated. This will generate harmful gases such as hydrogen chloride, so care must be taken when setting the temperature. Incidentally, it is known that thermal decomposition of this type of plastic begins gradually at about 130°C and becomes rapid at around 180°C. Therefore, if the waste is mainly plastic waste, it is appropriate to set the temperature to 130°C or lower. On the other hand, for food waste, it is appropriate to set the temperature to about 200° C. or lower in order to suppress the generation of burnt odor due to heating.

[0015] While keeping the temperature of the garbage at the set temperature, heating is continued to evaporate the water in the garbage and dry it. The generated water vapor is sent to the deodorizer 13 from the exhaust inlet 14.
The odor components are removed by the deodorizer 13 and the exhaust outlet 1
5 and is discharged to the outside. As drying progresses, the weight of the garbage decreases in proportion to the amount of water that evaporates, and the weight of the garbage gradually decreases. When the expansion and contraction means is operated when the garbage is dried in this manner, the pinion 11 is driven by a motor (not shown) to rotate in the direction of arrow A, and the rack 12 is raised in the direction of arrow B. As a result, the bottom plate 4 is pushed up and the waste container 3 contracts, reducing its internal volume. At the same time, the dried food waste in the waste container 3 is also compressed and reduced in volume. On the other hand, since the plastic waste is softened or partially melted as the temperature of the waste container 3 increases, it is easily compressed and reduced in volume as the waste container 3 contracts.

[0016] It should be noted that repeated expansion and contraction of the waste container 3 is more effective in reducing the volume of waste, and this operation is controlled by the pinion 11.
This can be easily done by simply changing the direction of rotation. If this expansion/contraction operation is performed while the garbage is drying, the garbage can be stirred, so the garbage can be heated uniformly and drying can be accelerated. FIG. 2 shows an example in which the expansion and contraction means are operated by a linear motor, and 21 is a moving element of an electric or ultrasonic linear motor, which moves up and down on a rail 22. A support plate 23 coupled to the electric heater 6, which also serves as a substrate of the garbage container 3, is attached to the mover 21, so that the garbage container 3 expands and contracts as the mover 21 moves up and down. Thereby, when the mover 21 is moved upward, the garbage container 3 contracts, and the garbage stored therein can be compressed. In addition, 25,2
6 is a stretchable electric cord that supplies electricity to the electric heater 6 and the mover 21 of the linear motor, and is connected to a power source 24. Further, parts that are the same as those shown in FIG. 1 are given the same reference numerals and explanations are omitted.

FIG. 3 shows an example in which the expansion and contraction means are operated by pneumatic pressure. Reference numeral 31 is a bellows made of materials such as heat-resistant rubber, heat-resistant plastic, and metal, and is connected to the base plate 4 of the garbage container 3. 36, and an air chamber 32 is formed inside. 33 is an air pump, suction port 3
The outside air is sucked in from 4 and discharged from the outlet 35 to form the air chamber 3.
2 is pressurized and the bellows 31 is expanded. The bellows 31 and the air pump 33 constitute an expansion and contraction means. This air pump 33 may be replaced by a high-pressure fan if the set pressure during pressurization may be small. Note that the same parts as those shown in FIG. 1 are given the same reference numerals and their explanations are omitted.

In the above configuration, when the expansion/contraction means is operated, the air pump 33 is started, and outside air is introduced into the air chamber 32 from the intake port 34 through the discharge port 35, and the inside of the air chamber 32 is pressurized. The bellows 31 expands due to the air pressure, and the bottom plate of the garbage container 3 is pushed up. This compresses the waste container 3 and reduces its internal volume. At the same time, the dried waste in the waste container 3 is also compressed and reduced in volume.

The waste disposal apparatus of each of the embodiments described above can be used as a waste disposal apparatus exclusively for plastic waste. In the case of this plastic waste processing equipment, only a small amount of moisture adhering to the plastic waste needs to be evaporated and exhausted, so the evaporation process of water is almost unnecessary, and the processing time is shortened, effectively reducing the volume of waste. be able to.

[0020]

Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, there is provided a bellows-like expandable garbage container provided in the main container, an expandable means for expanding and contracting the garbage container, and a garbage container. It is equipped with an electric motor that heats the garbage in the container and an exhaust path that discharges the gas in the container. Because it shrinks and reduces the volume of waste,
Suitable for household use, it can reduce the volume and volume of food waste such as cooking scraps generated in the kitchen and plastic waste used for packaging perishable foods with a simple structure and easy operation, and also suppress spoilage. Garbage disposal equipment can be provided.

[Brief explanation of drawings]

[Fig. 1] Side sectional view of one embodiment of the garbage disposal device of the present invention.

[
Figure 2: Side sectional view of another embodiment

[Figure 3] Side sectional view of another embodiment

[Explanation of symbols]

1 Main container 2 Door 3 Garbage container 6 Electric heater 11 Pinion (extension device) 12 Rack (extension device) 13　　　　Deodorizer (exhaust path) 21 Mover (extension device) 22 Rail (extension device) 31 Bellows (expanding device) 33 Air pump (expansion device)

Claims (3)

[Claims] 1. A main body container provided with a door, a bellows-like expandable garbage container provided in the main body container, an extensible means for expanding and contracting the garbage container, and heating the garbage in the garbage container. A waste disposal device comprising: an electric heater for discharging gas from the waste container; and an exhaust path for discharging gas in the waste container. 2. The garbage disposal apparatus according to claim 1, wherein the expansion and contraction means comprises an expansion and contraction device that expands and contracts by the power of a motor. 3. The garbage disposal apparatus according to claim 1, wherein the expansion and contraction means comprises an expansion and contraction device that expands and contracts by air pressure.